Payment not reflecting on account

I paid my Queenspark account via EFT on 4 March and 4 April. <br> The 4 March payment was allocated to my account. <br> The 4 April payment is to date not reflecting against my account and I am charged interest for the outstanding balance. <br> I queried this with the RCS cards division and received confirmation via e-mail and sms that the payment was allocated but when I wanted to settle the balance in the Kolennade store early in May I was advised that the payment is not reflecting against my account. <br> I queried it with the accounts department again and do date had no feedback. <br> Urgent attention to this matter is much appreciated in advance. <br> I notified the payments department that my e-mail address has changed and that all correspondence need to be forwarded to my new e-mail address. Can I please get feedback on the cell nr provided to make sure there's no miss communication in this regard.